Melt-cast organic glasses as high-efficiency fast neutron scintillators

Carlson, Joseph S.; Feng, Patrick L.

doi:10.1016/j.nima.2016.06.116

Title: Melt-cast organic glasses as high-efficiency fast neutron scintillators

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Abstract

In this work we report a new class of organic-based scintillators that combines several of the desirable attributes of existing crystalline, liquid, and plastic organic scintillators. The prepared materials may be isolated in single crystalline form or melt-cast to produce highly transparent glasses that have been shown to provide high light yields of up to 16,000 photons/MeVee, as evaluated against EJ-200 plastic scintillators and solution-grown trans-stilbene crystals. The prepared organic glasses exhibit neutron/gamma pulse-shape discrimination (PSD) and are compatible with wavelength shifters to reduce optical self-absorption effects that are intrinsic to pure materials such as crystalline organics. In conclusion, the combination of high scintillation efficiency, PSD capabilities, and facile scale-up via melt-casting distinguishes this new class of amorphous materials from existing alternatives.

Authors:

Carlson, Joseph S. ^[1]; Feng, Patrick L. ^[1]

Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Publication Date:: Fri Jun 24 00:00:00 EDT 2016

Research Org.:: Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation

OSTI Identifier:: 1262236

Alternate Identifier(s):: OSTI ID: 1359665

Report Number(s):: SAND-2016-6144J
Journal ID: ISSN 0168-9002; PII: S0168900216306866

Grant/Contract Number:: AC04-94AL85000

Resource Type:: Accepted Manuscript

Journal Name:: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

Additional Journal Information:: Journal Volume: 832; Journal Issue: C; Journal ID: ISSN 0168-9002

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; organic scintillator; pulse-shape discrimination; neutron; glass; plastic; crystal

Citation Formats


                    Carlson, Joseph S., and Feng, Patrick L. Melt-cast organic glasses as high-efficiency fast neutron scintillators.  United States: N. p., 2016. 
Web.  doi:10.1016/j.nima.2016.06.116.

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                    Carlson, Joseph S., & Feng, Patrick L. Melt-cast organic glasses as high-efficiency fast neutron scintillators.  United States.  https://doi.org/10.1016/j.nima.2016.06.116

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                    Carlson, Joseph S., and Feng, Patrick L. Fri .  
"Melt-cast organic glasses as high-efficiency fast neutron scintillators".  United States.  https://doi.org/10.1016/j.nima.2016.06.116.  https://www.osti.gov/servlets/purl/1262236.

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@article{osti_1262236,

  title        = {Melt-cast organic glasses as high-efficiency fast neutron scintillators},

  author       = {Carlson, Joseph S. and Feng, Patrick L.},

  abstractNote = {In this work we report a new class of organic-based scintillators that combines several of the desirable attributes of existing crystalline, liquid, and plastic organic scintillators. The prepared materials may be isolated in single crystalline form or melt-cast to produce highly transparent glasses that have been shown to provide high light yields of up to 16,000 photons/MeVee, as evaluated against EJ-200 plastic scintillators and solution-grown trans-stilbene crystals. The prepared organic glasses exhibit neutron/gamma pulse-shape discrimination (PSD) and are compatible with wavelength shifters to reduce optical self-absorption effects that are intrinsic to pure materials such as crystalline organics. In conclusion, the combination of high scintillation efficiency, PSD capabilities, and facile scale-up via melt-casting distinguishes this new class of amorphous materials from existing alternatives.},

  doi          = {10.1016/j.nima.2016.06.116},

  journal      = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},

  number       = C,

  volume       = 832,

  place        = {United States},

  year         = {Fri Jun 24 00:00:00 EDT 2016},

  month        = {Fri Jun 24 00:00:00 EDT 2016}

}

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